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维修手册
专案名称:
Axpert VM III-5000/VM III-3000
专案编号:
S1711171
修订版次:
00
PAGE
V-RDP-004-73 A
CB: 456k
Diode
CB: 0.688V
EB: 0.691V
VMIII-5K TX2
Resistor PIN7 to PIN9: 0.57 ohm
Short or other values
VMIII-3K TX2
Resistor PIN7 to PIN9: 0.4ohm
Short or other values
TX3
Resistor PIN9 to PIN10: 0.3ohm
Short or other values
D65
2
Diode
+ to -: 0.52V
- to +: OL
Short or explosion
Note1:
When test the Q69; please remove the R245 from the board, otherwise the test result is not right
Note2:
When test the D69; please remove the D65 from the board, otherwise the test result is not right
Main
Power SPS
The MOSFET Q9 are (
IXFP7N100P 7A 1000V N BULK TO-220
)
The Q8 are (2SC5353BL 3A 750V TO-126C)
The U8 are (IC PWM UC3845BNG DIP-8)
The R203 are (RES 5W 0.5ohm)
The R204 are (RES 1/4W 10ohm 1206)
The D53 are (1N4148W 0.15A 75V SMD)
The R67 are (RES 1/4W 10ohm 1206)
The D3 are (MUR460RLG 4A 600V UFST)
The D49 and D57 are (HER303 3A 200V UFST)
The U7 are (IC L7912CV 3P TO-220)
The U10 are (IC MC78M05CDTRKG DPAK-3)
The TX4 are (TX 8:21:2:4:8:21:7 FER EC28)